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Diff for /rpl/lapack/lapack/dlapy3.f between versions 1.17 and 1.18

version 1.17, 2018/05/29 07:17:58 version 1.18, 2023/08/07 08:38:55
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 *> \verbatim  *> \verbatim
 *>  *>
 *> DLAPY3 returns sqrt(x**2+y**2+z**2), taking care not to cause  *> DLAPY3 returns sqrt(x**2+y**2+z**2), taking care not to cause
 *> unnecessary overflow.  *> unnecessary overflow and unnecessary underflow.
 *> \endverbatim  *> \endverbatim
 *  *
 *  Arguments:  *  Arguments:
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 *> \author Univ. of Colorado Denver  *> \author Univ. of Colorado Denver
 *> \author NAG Ltd.  *> \author NAG Ltd.
 *  *
 *> \date December 2016  
 *  
 *> \ingroup OTHERauxiliary  *> \ingroup OTHERauxiliary
 *  *
 *  =====================================================================  *  =====================================================================
       DOUBLE PRECISION FUNCTION DLAPY3( X, Y, Z )        DOUBLE PRECISION FUNCTION DLAPY3( X, Y, Z )
 *  *
 *  -- LAPACK auxiliary routine (version 3.7.0) --  *  -- LAPACK auxiliary routine --
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --  *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--  *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
 *     December 2016  
 *  *
 *     .. Scalar Arguments ..  *     .. Scalar Arguments ..
       DOUBLE PRECISION   X, Y, Z        DOUBLE PRECISION   X, Y, Z
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       PARAMETER          ( ZERO = 0.0D0 )        PARAMETER          ( ZERO = 0.0D0 )
 *     ..  *     ..
 *     .. Local Scalars ..  *     .. Local Scalars ..
       DOUBLE PRECISION   W, XABS, YABS, ZABS        DOUBLE PRECISION   W, XABS, YABS, ZABS, HUGEVAL
   *     ..
   *     .. External Subroutines ..
         DOUBLE PRECISION   DLAMCH
 *     ..  *     ..
 *     .. Intrinsic Functions ..  *     .. Intrinsic Functions ..
       INTRINSIC          ABS, MAX, SQRT        INTRINSIC          ABS, MAX, SQRT
 *     ..  *     ..
 *     .. Executable Statements ..  *     .. Executable Statements ..
 *  *
         HUGEVAL = DLAMCH( 'Overflow' )
       XABS = ABS( X )        XABS = ABS( X )
       YABS = ABS( Y )        YABS = ABS( Y )
       ZABS = ABS( Z )        ZABS = ABS( Z )
       W = MAX( XABS, YABS, ZABS )        W = MAX( XABS, YABS, ZABS )
       IF( W.EQ.ZERO ) THEN        IF( W.EQ.ZERO .OR. W.GT.HUGEVAL ) THEN
 *     W can be zero for max(0,nan,0)  *     W can be zero for max(0,nan,0)
 *     adding all three entries together will make sure  *     adding all three entries together will make sure
 *     NaN will not disappear.  *     NaN will not disappear.
Removed from v.1.17  
changed lines
  Added in v.1.18

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